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<h2>Butterfly (Boloria chariclea) Measurements</h2>

<h3>Description</h3>

<p>Measurements for a sample of butterflies in Greenland
</p>


<h3>Format</h3>

<p>A data frame with 32 observations on the following 4 variables.
</p>

<dl>
<dt><code>Temp</code></dt><dd><p>Average temperature for preceding summer (Celsius)</p>
</dd>
<dt><code>Wing</code></dt><dd><p>Average wing length (mm)</p>
</dd>
<dt><code>Sex</code></dt><dd> <p><code>Female</code> or <code>Male</code></p>
</dd>
<dt><code>Species</code></dt><dd><p>all are <code>Bc</code>, Boloria chariclea</p>
</dd>
</dl>



<h3>Details</h3>

<p>Scientists measured wing length of a species of butterfly, Boloria chariclea (Bc), in Greenland each year from 1996 through 2013. They also recorded summer temperatures.
</p>


<h3>Source</h3>

<p>Digitized data from plots in Bowden, J. et al., &quot;High-Arctic butterflies become smaller with rising temperatures&quot;, published in Biology Letters 11: 20150574
</p>


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